CN109504472A - Microalgae based biomass method for refining and the system for implementing it - Google Patents
Microalgae based biomass method for refining and the system for implementing it Download PDFInfo
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- CN109504472A CN109504472A CN201811303113.3A CN201811303113A CN109504472A CN 109504472 A CN109504472 A CN 109504472A CN 201811303113 A CN201811303113 A CN 201811303113A CN 109504472 A CN109504472 A CN 109504472A
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B1/00—Production of fats or fatty oils from raw materials
- C11B1/02—Pretreatment
- C11B1/04—Pretreatment of vegetable raw material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/02—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of cellulose-containing material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G69/00—Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one other conversion process
- C10G69/02—Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one other conversion process plural serial stages only
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/02—Liquid carbonaceous fuels essentially based on components consisting of carbon, hydrogen, and oxygen only
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B1/00—Production of fats or fatty oils from raw materials
- C11B1/10—Production of fats or fatty oils from raw materials by extracting
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Abstract
The invention discloses a kind of microalgae based biomass method for refining and the system for implementing it, method obtains dry algae powder the following steps are included: S1, pre-process microalgae；S2, dry algae powder is extracted, obtains algae oil and algae-residue；S3, algae oil is carried out turning to acetify reaction, obtains biodiesel, algae-residue is pyrolyzed, obtain charcoal and pyrolysis oil gas；S4, pyrolysis oil gas is condensed and separated, obtains pyrolysis gas, pyrolysis waste water and pyrolysis oil；S5, pyrolysis oil is subjected to hydrotreating, obtains refined oil；S6, refined oil is subjected to fractionation processing, obtains diesel oil, gasoline and kerosene.Thus, the method for refining is in the Poly-generation for realizing biodiesel, biological diesel, diesel oil and kerosene using a whole set of extraction, transesterification, pyrolysis plus hydrogen and fractionating step, Poly-generation coke and pyrolysis gas are gone back simultaneously, the component cascade utilization of microalgae is achieved, coproduction improves the economy of microalgae based biomass method for refining.
Description
Technical field
The present invention relates to microalgae processing technology fields, more particularly, to a kind of microalgae based biomass method for refining and implementation
Its system.
Background technique
With the deterioration of Global Greenhouse Effect and the increasingly shortage of fossil energy, the research of biological base liquid fuel is by more
Carry out more attention.As third generation biofuel feedstock, microalgae biomass fast, CO with growth cycle2Fixed efficiency height, light
Close the features such as efficiency is significantly higher than terrestrial plant and high fat content.But biomass itself have energy density it is low, with it is existing
Liquid fuel transport utilizes system incompatibility problem.Therefore converting liquid fuel for the microalgae biomass of solid is necessarily to utilize
One of approach.The technique that microalgae prepares oil product mostly uses based on the transesterification preparation biodiesel of the grease in microalgae, remaining algae-residue
It is efficient using urgently handling.Meanwhile current microalgae cost of material is high, liquid fuel was prepared does not have economy.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, one object of the present invention
It is to propose that the component cascade utilization of microalgae, Ke Yiti may be implemented in a kind of microalgae based biomass method for refining, the method for refining
The economy of high technology.
The present invention further proposes a kind of system for implementing microalgae based biomass method for refining.
Microalgae based biomass method for refining according to the present invention, comprising the following steps: S1, microalgae is pre-processed, is obtained
To dry algae powder；S2, dry algae powder is extracted, obtains algae oil and algae-residue；S3, algae oil is carried out turning to acetify reaction, is obtained
Algae-residue is pyrolyzed by biodiesel, obtains charcoal and pyrolysis oil gas；S4, pyrolysis oil gas is condensed and separated, obtains heat
It vents one's spleen, be pyrolyzed waste water and pyrolysis oil；S5, pyrolysis oil is subjected to hydrotreating, obtains refined oil；S6, refined oil is fractionated
Processing, obtains diesel oil, gasoline and kerosene.
The method for refining is realizing biology using a whole set of extraction, transesterification, pyrolysis plus hydrogen and fractionating step as a result,
The Poly-generation of diesel oil, biological diesel, diesel oil and kerosene, while also Poly-generation coke and pyrolysis gas, have been achieved microalgae
Component cascade utilization, coproduction improve the economy of microalgae based biomass method for refining.Pyrolysis gas can be from for pyrolysis installation
Heating, it is extra to export as electricity, steam or low value combustion gas.Coke is used as active carbon after being further processed in powder, or
Heat production or steam are personal after person's burning.
In some examples of the invention, in the step S1, the pretreatment includes: by microdisk electrode in culture pond
In；Microalgae in culture pond is dried, dry algae powder is obtained.
In some examples of the invention, in the step S1, the moisture content of dry algae powder is reduced to 10% or less.
In some examples of the invention, in the step S2, microalgae is extracted using mixed organic solvents, is mixed
Bonding solvent is made of methylene chloride and methanol, volume ratio 1.8:1-2.2:1.
In some examples of the invention, in the step S2, by extraction time control within 1 hour, extraction temperature
Degree control is between 30~35 DEG C.
In some examples of the invention, in the step S3, turn the molar ratio of methanol to oil acetified control in 25:1-30:1
Between, catalyst uses KOH, and reaction temperature controls between 40-70 DEG C.
In some examples of the invention, in the step S3, pyrolysis temperature control is at 350-500 DEG C or so, pyrolysis
The oil gas residence time is maintained within 5s.
In some examples of the invention, in described step S1, S3 and S5, the waste water of generation returns to culture microalgae
In culture pond.
The system according to the present invention for implementing microalgae based biomass method for refining, comprising: pretreatment unit, the pretreatment
Device is exported with algae powder；Extraction equipment, the extraction equipment have the import of algae powder, extractant import, algae oil outlet and algae-residue
Outlet, the algae powder outlet are connected with the algae powder import；Transesterification device, described turn acetifies device with algae oil import, vinegar
Agent import, biodiesel outlet, the algae oil outlet are connected with the algae oil import；Pyrolysis installation, the pyrolysis installation tool
There are algae-residue import, charcoal outlet, pyrolysis oil gas vent, the algae-residue outlet is connected with the algae-residue import；Condense and separate dress
It sets, described condense and separate has pyrolysis oil and gas import, pyrolysis gas outlet, pyrolysis oil export and pyrolysis wastewater outlet, the pyrolysis
Oil gas vent is connected with the pyrolysis oil and gas import；Hydrogenation plant, the hydrogenation plant have pyrolysis oil inlet, hydrogen inlet and
Oil export is refined, the pyrolysis oil export is connected with the pyrolysis oil inlet；Fractionating device, the fractionating device have refined oil
Import, diesel oil outlet, fuel dispensing outlet and kerosene outlet, the purification oil export are connected with the purification oil inlet.
In some examples of the invention, the pretreatment unit includes culture pond and drying machine, and the drying machine gives up
The waste line of water lines, the waste line of the pyrolysis installation and hydrogenation plant is connected with the culture pond.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the flow chart of microalgae based biomass method for refining according to an embodiment of the present invention；
Fig. 2 is the step schematic diagram of microalgae based biomass method for refining according to an embodiment of the present invention；
Fig. 3 is the system schematic according to an embodiment of the present invention for implementing microalgae based biomass method for refining.
Appended drawing reference:
System 100；
Pretreatment unit 1；Culture pond 11；Drying machine 12；
Extraction equipment 2；Pyrolysis installation 3；Condensation separating unit 4；Condenser 41；Oil-water separation tank 42；
Turn to acetify device 5；Hydrogenation plant 6；Fractionating device 7.
Specific embodiment
Microalgae based biomass method for refining according to an embodiment of the present invention is described below with reference to Fig. 1-Fig. 3.
As depicted in figs. 1 and 2, microalgae based biomass method for refining according to an embodiment of the present invention may include following step
It is rapid: S1, microalgae being pre-processed, obtains dry algae powder.Wherein, pretreatment includes: and incites somebody to action by microdisk electrode in culture pond 11
Microalgae in culture pond 11 is dried, and obtains dry algae powder.Culture pond 11 includes algae import, waste water inlet and microalgae
Outlet, drying machine 12 include that microalgae import and algae powder export, and microalgae outlet is connected with the microalgae import of drying machine 12.By above-mentioned
Microalgae, can be processed into dry algae powder by pretreatment, can be carried out in this way in order to subsequent extraction and pyrolysis step.
Wherein, moisture content is 90% or more after microalgae flocculation harvesting, and moisture content drops after being dehydrated by high speed centrifugation device
As low as 50% hereinafter, subsequently through rotary drum heat drying or drying process with atomizing, moisture content can be reduced to 10% or less.It reduces
The moisture content of microalgae, can be in order to the progress of subsequent step, can be to avoid the excessive moisture content of generation.
S2, dry algae powder is extracted, obtains algae oil and algae-residue.Wherein, using mixed organic solvents for microalgae into
Row oil extraction.Mixed organic solvents are made of methylene chloride and methanol, volume ratio 1.8:1-2.2:1.Organic solvent and dry
The ratio of dry algae powder can be 10L/1kg.Extraction time controlled within 1 hour, and extraction temperature controls between 30-35 DEG C.
S3, algae oil being carried out turning to acetify reaction, obtains biodiesel, algae oil is dehydrated, after imurity-removal by pretreatment,
Transesterification occurs with methanol and generates biodiesel.Wherein molar ratio of methanol to oil control 25:1-30:1, catalyst using KOH,
Reaction temperature is controlled at 40-70 DEG C.
Algae-residue is pyrolyzed, charcoal and pyrolysis oil gas are obtained.Algae-residue enters pyrolysis installation 3 and carries out pyrolysis operations, heat
Temperature control is solved at 350-500 DEG C or so, the high temperature pyrolysis of oil and gas residence time is maintained within 5s, the algae-residue steep temperature rise of solid
And it is cracked into high temperature pyrolysis of oil and gas and charcoal.High temperature pyrolysis of oil and gas are by vapor, gaseous state tar, permanent gas and small molecule hydro carbons
The composition such as gas.Pyrolysis installation 3 is discharged as solid product in charcoal.
S4, pyrolysis oil gas is condensed and separated, obtains pyrolysis gas, pyrolysis waste water and pyrolysis oil.High temperature pyrolysis of oil and gas are first
It first passes through condenser 41 and carries out gas-liquid separation again, be mainly permanent gas and small molecule hydrocarbon gas, isolated heat in gas
Pyrolysis installation 3 can be returned to by venting one's spleen uses as fuel gas.Grease is formed after tar, vapor cooling in high temperature pyrolysis of oil and gas
Mixture enters water-oil separating process.Water-oil separating process, mutually with the density contrast of water phase, tar and reaction water is centrifuged according to oil
Separation.
S5, pyrolysis oil is subjected to hydrotreating, obtains refined oil.Pyrolysis oil is by pretreatment, such as flash-evaporation dehydration, electro-desalting
After technique, into hydrofining technology.Hydrofining technology operating pressure 3-4MPa, 300-350 DEG C of operation temperature, total hydrogen consumption with
The molar ratio of raw tar is 4-8%.Catalyst used by hydrofinishing is inexpensive conventional commercial catalyst n iMo/
γ-Al2O3, use preceding progress presulfurization operation.
S6, refined oil is subjected to fractionation processing, obtains diesel oil, gasoline and kerosene.Hydrotreated product is directly entered fractionation
Tower realizes the separation of different component (gasoline, kerosene and diesel oil) according to the difference of component boiling point.Wherein, the cut point of gasoline
Range: 60-220 DEG C, the fractionation temperature ranges of kerosene: 200-300 DEG C, the fractionation temperature ranges of diesel oil: 300-360 DEG C.
Wherein, in step S1, S3 and S5, the waste water of generation is returned in the culture pond 11 of culture microalgae.Micro algae growth
Process itself has the function of purifying water body, the waste water that the technique each stage generates, including dry condensation waste water, transesterification, high
The waste water generated in warm solution oil gas condensation waste water, unifining process can be back to both culturing microalgae (culture) process, real
The water circulation for having showed entire technical process, realizes recycling for microdisk electrode nutrition composition (such as N, P), reduce water consume at
Sheet and sewage purification cost.Incubation controls pH value 8 or so, and for control nitrogen element content in 20-30mg/L, microdisk electrode is raw
Control was at 8 days or so for a long time.The each source sewage of plant area should avoid organic concentration excessively high, want simultaneously by being simply mixed
By suspended matter removal technique, increase water body light transmittance.
The method for refining is realizing biology using a whole set of extraction, transesterification, pyrolysis plus hydrogen and fractionating step as a result,
The Poly-generation of diesel oil, biological diesel, diesel oil and kerosene, while also Poly-generation coke and pyrolysis gas, have been achieved microalgae
Component cascade utilization, coproduction improve the economy of microalgae based biomass method for refining.Pyrolysis gas can be from for pyrolysis installation 3
Heating, it is extra to export as electricity, steam or low value combustion gas.Coke is used as active carbon after being further processed in powder, or
Heat production or steam are personal after person's burning.
As shown in figure 3, the system 100 according to an embodiment of the present invention for implementing microalgae based biomass method for refining, comprising: pre-
Processing unit 1, extraction equipment 2, transesterification device, pyrolysis installation 3, condensation separating unit 4, hydrogenation plant 6 and fractionating device 7.
Pretreatment unit 1 includes culture pond 11 and drying machine 12, and culture pond 11 includes algae import, waste water inlet and microalgae
Outlet, drying machine 12 include that microalgae import and algae powder export, and microalgae outlet is connected with the microalgae import of drying machine 12.Extraction equipment
2 have the import of algae powder, extractant import, algae oil outlet and algae-residue outlet, and the outlet of algae powder is connected with algae powder import.Turn to acetify device
5 have algae oil import, acetificator import, biodiesel outlet, and algae oil outlet is connected with algae oil import.
Pyrolysis installation 3 has algae-residue import, charcoal outlet, pyrolysis oil gas vent, and algae-residue outlet is connected with algae-residue import,
Condensation separating unit 4 has pyrolysis oil and gas import, pyrolysis gas outlet, pyrolysis oil export and pyrolysis wastewater outlet, and pyrolysis oil gas goes out
Mouth is connected with pyrolysis oil and gas import, wherein condensation separating unit 4 includes condenser 41 and oil-water separation tank 42, and condenser 41 has
There are pyrolysis oil and gas import and pyrolysis gas and liquid-phase outlet, pyrolysis oil and gas import is connected with the pyrolysis oil gas vent of pyrolysis installation 3, oil
There is water separating tank 42 liquid phase entrance, pyrolysis oil export and wastewater outlet, liquid-phase outlet to be connected with liquid phase entrance, be pyrolyzed oil export
It is connected with the pyrolysis oil inlet of hydrogenation plant 6, wastewater outlet is connected with the waterwater entrance of culture pond 11.
Hydrogenation plant 6 can be to add hydrogen tower, and hydrogenation plant 6 has pyrolysis oil inlet, hydrogen inlet and purification oil export, heat
Solution oil export is connected with pyrolysis oil inlet, and fractionating device 7 has purification oil inlet, diesel oil outlet, fuel dispensing outlet and kerosene outlet,
Purification oil export is connected with purification oil inlet.The waste line of drying machine 12, the waste line of pyrolysis installation 3 and hydrogenation plant 6
Waste line be connected with culture pond 11.
It is real using a whole set of extraction, transesterification, pyrolysis plus hydrogen and fractionating device 7 as a result, by setting above system 100
The Poly-generation of biodiesel, biological diesel, diesel oil and kerosene, while also Poly-generation coke and pyrolysis gas are showed, have been achieved
The component cascade utilization of microalgae, coproduction improve the economy of microalgae based biomass method for refining.Pyrolysis gas can be used for certainly
Pyrolysis installation 3 heats, extra to export as electricity, steam or low value combustion gas.Coke is used as after being further processed in powder
Heat production or steam are personal after active carbon, or burning.
Specific embodiment is given below.
Microalgae is extracted, is transesterification, the experiment of fast pyrogenation Poly-generation.The composition information of microalgae sample is as shown in table 1.
Microalgae sample is dehydrated respectively, is dry to powder before being pyrolyzed.Then microalgae is divided into two parts by extraction process: algae oil is (about
And algae-residue (about 65%) 35%).Algae oil forms biodiesel by transesterification operation, and transesterification process biodiesel yield is
85%.
Algae-residue enters after pyrolysis installation 3 is warming up to 425-475 DEG C, and powder sample is added rapidly in pyrolysis installation 3.Heat
The high-temperature oil gas that solution generates carries out rapid cooling (dehydrated alcohol, -20 DEG C) and water-oil separating respectively after inert gas is taken out of.Heat
The yield distribution of biological oil product is solved in 37% or so (being based on algae-residue quality).Resulting oil product uses gas chromatography-mass spectrography
Instrument measures carbon number distribution, and pyrolysis oil product is distributed within the scope of gasoline, kerosene carbon number distribution.Wherein gasoline (C4-C10), coal
The maximum yield of oily (C8-C16) predecessor is respectively 51.26%, 47.65%.Then gained bio oil is subjected to hydrofinishing
Operation, adds biological diesel, kerosene and diesel yield after hydrogen to keep this ratio substantially.
The technique using a whole set of extraction, it is transesterification, pyrolysis, hydrogenation plant 6 on the basis of realize biodiesel, life
The Poly-generation of object base gasoline, diesel oil and kerosene, while also Poly-generation coke and pyrolysis gas.Pyrolysis gas can be from for pyrolysis installation
3 heating, it is extra to export as electricity, steam or low value combustion gas.Coke is used as active carbon after being further processed in powder, or
Heat production or steam are personal after person's burning.The waste water recycling that dewatering microalgae is dry, is pyrolyzed, generates in unifining process is trained in microalgae
The process of supporting.
1 microalgae sample composition information of table
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are included at least one embodiment or example of the invention.In the present specification, to above-mentioned term
Schematic representation may not refer to the same embodiment or example.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (10)
1. a kind of microalgae based biomass method for refining, which comprises the following steps:
S1, microalgae is pre-processed, obtains dry algae powder；
S2, dry algae powder is extracted, obtains algae oil and algae-residue；
S3, algae oil is carried out turning to acetify reaction, obtains biodiesel,
Algae-residue is pyrolyzed, charcoal and pyrolysis oil gas are obtained；
S4, pyrolysis oil gas is condensed and separated, obtains pyrolysis gas, pyrolysis waste water and pyrolysis oil；
S5, pyrolysis oil is subjected to hydrotreating, obtains refined oil；
S6, refined oil is subjected to fractionation processing, obtains diesel oil, gasoline and kerosene.
2. microalgae based biomass method for refining according to claim 1, which is characterized in that in the step S1,
It is described pretreatment include: by microdisk electrode in culture pond；
Microalgae in culture pond is dried, dry algae powder is obtained.
3. microalgae based biomass method for refining according to claim 2, which is characterized in that in the step S1,
The moisture content of dry algae powder is reduced to 10% or less.
4. microalgae based biomass method for refining according to claim 1, which is characterized in that in the step S2,
Microalgae is extracted using mixed organic solvents, mixed solvent is made of methylene chloride and methanol, volume ratio 1.8:
1-2.2:1。
5. microalgae based biomass method for refining according to claim 4, which is characterized in that in the step S2,
By extraction time control within 1 hour, extraction temperature is controlled between 30~35 DEG C.
6. microalgae based biomass method for refining according to claim 1, which is characterized in that in the step S3,
Turn the molar ratio of methanol to oil acetified to control between 25:1-30:1, catalyst uses KOH, and reaction temperature is controlled at 40-70 DEG C
Between.
7. microalgae based biomass method for refining according to claim 1, which is characterized in that in the step S3,
Pyrolysis temperature is controlled at 350-500 DEG C or so, and the pyrolysis oil gas residence time is maintained within 5s.
8. microalgae based biomass method for refining according to claim 1, which is characterized in that in described step S1, S3 and S5
In,
The waste water of generation returns in the culture pond of culture microalgae.
9. a kind of system for implementing the microalgae based biomass method for refining of any of claims 1-8, which is characterized in that
Include:
Pretreatment unit, the pretreatment unit are exported with algae powder；
Extraction equipment, the extraction equipment have the import of algae powder, extractant import, algae oil outlet and algae-residue outlet, the algae powder
Outlet is connected with the algae powder import；
Transesterification device, described turn acetifies device with algae oil import, acetificator import, biodiesel outlet, and the algae oil goes out
Mouth is connected with the algae oil import；
Pyrolysis installation, the pyrolysis installation have algae-residue import, charcoal outlet and a pyrolysis oil gas vent, algae-residue outlet and
The algae-residue import is connected；
Condensation separating unit, described condense and separate have pyrolysis oil and gas import, pyrolysis gas outlet, pyrolysis oil export and pyrolysis waste water
Outlet, the pyrolysis oil gas vent are connected with the pyrolysis oil and gas import；
Hydrogenation plant, the hydrogenation plant have pyrolysis oil inlet, hydrogen inlet and purification oil export, the pyrolysis oil export with
The pyrolysis oil inlet is connected；
Fractionating device, the fractionating device have purification oil inlet, diesel oil outlet, fuel dispensing outlet and kerosene outlet, the purification
Oil export is connected with the purification oil inlet.
10. the system of microalgae based biomass method for refining according to claim 9, which is characterized in that the pretreatment dress
It sets including culture pond and drying machine, the waste line of the drying machine, the waste line of the pyrolysis installation and hydrogenation plant
Waste line is connected with the culture pond.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113801667A (en) * | 2021-09-23 | 2021-12-17 | 河北工业大学 | Treatment method for comprehensively utilizing microalgae residues |
| CN114181723A (en) * | 2021-12-08 | 2022-03-15 | 荣成泰祥食品股份有限公司 | Marine algae biomass refining device |
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| CN113801667A (en) * | 2021-09-23 | 2021-12-17 | 河北工业大学 | Treatment method for comprehensively utilizing microalgae residues |
| CN114181723A (en) * | 2021-12-08 | 2022-03-15 | 荣成泰祥食品股份有限公司 | Marine algae biomass refining device |
| CN114181723B (en) * | 2021-12-08 | 2024-03-29 | 荣成泰祥食品股份有限公司 | Marine alga biomass refining device |
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